| article html file updated | 9 February 2020 12:48 CET | Update | https://www.mdpi.com/1996-1073/11/4/859 |
| article html file updated | 2 October 2019 08:34 CEST | Update | - |
| article html file updated | 1 May 2019 05:31 CEST | Update | - |
| article html file updated | 17 April 2019 05:41 CEST | Update | - |
| article html file updated | 29 March 2019 13:21 CET | Update | - |
| article html file updated | 1 May 2018 09:11 CEST | Update | - |
| article html file updated | 6 April 2018 12:45 CEST | Original file | - |
| article xml uploaded. | 6 April 2018 12:44 CEST | Update | https://www.mdpi.com/1996-1073/11/4/859/xml |
| article pdf uploaded. | 6 April 2018 12:44 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/859/pdf |
